say与speak的区别.

peak 着重“讲话这一动作本身,既可指系统的长篇讲话,又可指简单的开口发音,但不一定有人在听所说的话”,如:
The baby is learning to speak.那个婴儿在学说话.
Say“说,述说,用系统的言语表达自己的想法”,学语的婴儿虽能speak或talk,但不能say,宾语是话语,而非人,say sth.)
如：Did you say anything?你说了什么吗?
John said,“All right.”约翰说,“好吧.”